specs/Ornamentation.md: what a game is besides its rules

Draws one boundary — between what the rules can see and everything else a
player experiences — and says which repository each belongs to as the
simulator grows.

"Ritual" becomes ornamentation: half the category is material rather than
ceremonial, and "decoration" is already spoken for in this repo (a control
that cannot fail). The test is not "does it have a decision in it" —
choosing who deals is a decision and is ornamental. The test is whether
the state hash moves, which reuses the instrument that already binds a
trial note to a position.

The part that earns its place in clay-borg rather than in a renderer's
stylesheet: calling something ornamentation is a CLAIM THAT IT DOES NOT
MATTER, and this project's register is a list of times that claim was
wrong — quantity in Tokens.csv, F18's four unread files, SOLVE offered
where it could not act. So a declaration carries a falsifier, and
"provisional" is a state it must say out loud.

Downstream may read, may not decide — ADR-0007 D5 restated at the
repository boundary. The port to clay-animate is deliberately NOT
designed: no consumer exists, and an interface built against an imagined
client is the same defect as a gate that cannot go red.

Five invariants, four checkable today. I3 — same seed and decisions
produce a byte-identical recording at any pace through any renderer — is
the falsifier for the whole split.

CB-WP-0036 re-declared from L to M accordingly: the animation architecture
that made it L has moved to clay-animate. No code had been written and the
tier-L review had not been run, which is the only reason it could be
re-scoped rather than unwound.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

specs/ArchitectureBlueprint.md

@@ -5,6 +5,9 @@ the stable structural decisions: layers, component planes, capability ports,
 data flows, and repository layout. For motivation and product intent see
 [`../INTENT.md`](../INTENT.md); for the full originating exploration see
 [`../history/260730-InitialExploration.md`](../history/260730-InitialExploration.md).
+For the boundary between what the rules can see and everything else a
+player experiences — and which repository each belongs to as the simulator
+grows — see [`Ornamentation.md`](Ornamentation.md).
 
 Status: **draft** — this blueprint is normative for new work but still
 malleable (Clay). Changes go through a decision record in `decisions/`.